Rail service disruption continues

V/Line train and bus services between Melbourne and Gippsland are still being disrupted by repair work in Melbourne.

All peak-hour trains were replaced by buses this morning but services are now a mixture of buses and trains.

The latest service from Traralgon was a train to Warragul and a bus to Southern Cross Station.

James Kelly from V/Line says the Gippsland trains have been unable to travel from Southern Cross Station to Flinders Street.

"We're just trying to make it as easy as possible for people to get where they need to go, so particularly for peak services this morning, they will be run as coaches for the entire journey but it will be a hybrid of trains and coaches at least later today if things aren't back to normal," he said.

The Public Transport Users Association says the replacement services have been confusing for customers.

"It's perhaps bad enough having to have a bus as opposed to a train at the best of times but when you then get off that bus and get onto a train somewhere down the line that can be difficult for people to cope with and to understand," he said.

V/Line says services will be back to normal this afternoon.

Passengers are being warned to expect delays and extended travel times of at least an hour.